CIRRUS PA73

PA01PA01
• PA73
• PA73
PPPA01,
rr oo dd uu cc tt I PA73
m
n n o v a ttiioonn FFrroom
Power Operational Amplifier
FEATURES
• LOW COST, ECONOMY MODEL — PA01
• HIGH OUTPUT CURRENT — Up to ±5A PEAK
• EXCELLENT LINEARITY — PA01
• HIGH SUPPLY VOLTAGE — Up to ±30V
• ISOLATED CASE — 300V
APPLICATIONS
• MOTOR, VALVE AND ACTUATOR CONTROL
• MAGNETIC DEFLECTION CIRCUITS UP TO 4A
• POWER TRANSDUCERS UP TO 20kHz
• TEMPERATURE CONTROL UP TO 180W
• PROGRAMMABLE POWER SUPPLIES UP TO 48V
• AUDIO AMPLIFIERS UP TO 50W RMS
8-pin TO-3
PACKAGE STYLE CE
TYPICAL APPLICATION
CF
VIN
RIN
The PA01 and PA73 are high voltage, high output current
operational amplifiers designed to drive resistive, inductive
and capacitive loads. For optimum linearity, the PA01 has a
class A/B output stage. The PA73 has a simple class C output
stage (see Note 1) to reduce cost for motor control and other
applications where crossover distortion is not critical and
to provide interchangeability with type 3573 amplifiers. The
safe operating area (SOA) can be observed for all operating
conditions by selection of user programmable current limit
resistors. These amplifiers are internally compensated for all
gain settings. For continuous operation under load, a heatsink
of proper rating is recommended.
This hybrid integrated circuit utilizes thick film (cermet)
resistors, ceramic capacitors and semiconductor chips to
maximize reliability, minimize size and give top performance.
Ultrasonically bonded aluminum wires provide reliable interconnections at all operating temperatures. The 8-pin TO-3
package is hermetically sealed and electrically isolated. The
use of compressible thermal washers and/or improper mounting torque will void the product warranty. Please see “General
Operating Considerations”.
PA01
1N4148
RCL–
2
3
+IN
RF
0/–5V
Unidirectional Optical Speed Control
EQUIVALENT SCHEMATIC
3
OUT
6
7
Q2B
2
Q3
1
*
OUTPUT
–VS
Q2A
*
Q1 *
1
Q4 * Q5
5
8
CL–
8
*
4
R CL–
24V
The pulse output of a non-contact optical sensor drives a
voltage-to-frequency converter which generates feedback for
the op amp. With the loop closed in this manner, the op amp
corrects for any variations in the speed due to changing load.
Because of operation in only one direction, an unsymmetrical
supply is used to maximize efficiency of both power op amp
and power supply. High speed diodes at the input protect the
op amp from commutator noise which may be generated by
the motor.
TOP VIEW
–IN
M
UNSYMMETRICAL SUPPLIES FOR EFFICIENCY
D1 *
4
OPTO
PULSE
GEN.
F/V
R CL+
CL+
.33Ω
3W
–30V
EXTERNAL CONNECTIONS
+VS
.33Ω
3W
0/+5V
DESCRIPTION
RCL+
+6V
Q6A
A1
Q6B
5
N.C.
C1
6
NOTE 1: * Indicates not used in PA73. Open base of Q2A
connected to output of A1.
PA01-73U
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
MAY 20091
APEX − PA01-73UREVU
PA01 • PA73
P r o d u c t I n n o v a t i o nF r o m
ABSOLUTE MAXIMUM RATINGS
SUPPLY VOLTAGE, +VS to –VS
OUTPUT CURRENT, within SOA
POWER DISSIPATION, internal
INPUT VOLTAGE, differential
INPUT VOLTAGE, common-mode
TEMPERATURE, junction1
TEMPERATURE, pin solder -10s
TEMPERATURE RANGE, storage
OPERATING TEMPERATURE RANGE, case
SPECIFICATIONS
PARAMETER
TEST CONDITIONS 2
INPUT
OFFSET VOLTAGE, initial
OFFSET VOLTAGE, vs. temperature
OFFSET VOLTAGE, vs. supply
OFFSET VOLTAGE, vs. power
BIAS CURRENT, initial
BIAS CURRENT, vs. temperature
BIAS CURRENT, vs. supply
OFFSET CURRENT, initial
OFFSET CURRENT, vs. temperature
INPUT IMPEDANCE, common-mode
INPUT IMPEDANCE, differential
INPUT CAPACITANCE
COMMON MODE VOLTAGE RANGE3
COMMON MODE REJECTION, DC3
TC = 25°C
Full temperature range
TC = 25°C
TC = 25°C
TC = 25°C
Full temperature range
TC = 25°C
TC = 25°C
Full temperature range
TC = 25°C
TC = 25°C
TC = 25°C
Full temperature range
TC = 25°C, VCM = VS –6V
GAIN
OPEN LOOP GAIN at 10Hz
GAIN BANDWIDTH PRODUCT @ 1MHz
POWER BANDWIDTH
PHASE MARGIN
Full temp. range, full load
TC = 25°C, full load
TC = 25°C, IO = 4A, VO = 40VPP
Full temperature range
OUTPUT
VOLTAGE SWING3
VOLTAGE SWING3
VOLTAGE SWING3
CURRENT, peak
SETTLING TIME to .1%
SLEW RATE
CAPACITIVE LOAD, unity gain
CAPACITIVE LOAD, gain > 4
TC = 25°C, IO = 5A
Full temp. range, IO = 2A
Full temp. range, IO = 46mA
TC = 25°C
TC = 25°C, 2V step
TC = 25°C, RL = 2.5Ω
Full temperature range
Full temperature range
POWER SUPPLY
VOLTAGE
CURRENT, quiescent
Full temperature range
TC = 25°C
THERMAL
RESISTANCE, AC, junction to case4
RESISTANCE, DC, junction to case
RESISTANCE, junction to air
TEMPERATURE RANGE, case
MIN
PA01
TYP
MAX
MIN
±VS–6
70
±5
±10
±35
±20
±15
±.05
±.02
±12
±.05
200
10
3
±VS–3
110
±12
±65
±50
±.4
±30
*
*
91
15
±10
–25
PA73
68V
5A
67W
±37V
±VS
200°C
300°C
–65 to +150°C
–25 to +85°C
PA73
TYP
MAX
UNITS
*
±10
*
*
*
±200
*
*
±40
*
*
*
*
*
*
*
*
*
*
*
mV
µV/°C
µV/V
µV/W
nA
nA/°C
nA/V
nA
nA/°C
MΩ
MΩ
pF
V
dB
*
*
*
*
dB
MHz
kHz
°
±VS–8
*
*
*
*
*
*
*
*
1
*
SOA
*
V
V
V
A
µs
V/µs
nF
±28
20
±28
*
50
V
mA
1.9
2.4
30
25
2.1
2.6
+85
*
113
1
23
45
±VS–10 ±VS–5
±VS–6 ±VS–5
±VS–5
±5
2
1.0
2.6
F > 60Hz
F < 60Hz
Meets full range specifications
PA01
60V
5A
67W
±37V
±VS
200°C
300°C
–65 to +150°C
–25 to +85°C
*
*
*
2.6
±30
5
*
*
*
*
*
*
*
°C/W
°C/W
°C/W
°C
NOTES: * The specification of PA73 is identical to the specification for PA01 in applicable column to the left.
1. Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation to
achieve high MTTF.
2. The power supply voltage specified under the TYP rating applies unless otherwise noted as a test condition.
3. +VS and –VS denote the positive and negative supply rail respectively. Total VS is measured from +VS to –VS.
4. Rating applies if the output current alternates between both output transistors at a rate faster than 60Hz.
CAUTION
2
The internal substrate contains beryllia (BeO). Do not break the seal. If accidentally broken, do not crush, machine, or
subject to temperatures in excess of 850°C to avoid generating toxic fumes.
PA01-73U
PA01 • PA73
POWER DERATING
50
40
T = TC
30
20
T = TA
10
0
0
1.6
1.3
1.0
.7
40
20
–80
–100
–120
–140
–160
–20
1
–180
100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
COMMON MODE REJECTION
OUTPUT VOLTAGE, VO (V)
100
80
60
1
10
PA01
4
2
0
∆ for PA73
–4
20
–6
–8
0
1
100 1K 10K .1M
FREQUENCY, F (Hz)
10
0
25 50 75 100 125
–50 –25 0
CASE TEMPERATURE, TC (°C)
68
0
46
2
4
6
8
TIME, t (µs)
10
12
|+VS | + |-VS | = 60V
32
22
15
10
6.8
4.6
10K
20K 30K
50K 70K .1M
FREQUENCY, F (Hz)
INPUT NOISE
70
50
40
30
20
10
10
1K
100
10K
FREQUENCY, F (Hz)
.1M
QUIESCENT CURRENT
1.3
W
m
.3
3
7
PA
1
0
PA
@
32
=
O
VS = ±28V
RL = 8Ω
AV = 10
1.1
1.0
.9
PA01
C
@ 85°
5°C
° to +2
@ –25 to +85°C
PA01
°
5
2
@–
PA73
.8
@
P
1.2
PA
.003
100
50
01
PA
73
@
P
O
=
.03
W
m
=
PO
W
.1
@
=
PO
50
NORMALIZED, IQ (X)
1
.01
1M
HARMONIC DISTORTION
3
.5
100
VIN = ±5V, tR = 100ns
6
–2
40
RCL = 0.6Ω
1.0
100 1K 10K .1M 1M 10M
FREQUENCY, F (Hz)
PULSE RESPONSE
8
120
RCL = 0.3Ω
POWER RESPONSE
–60
0
10
1.5
OUTPUT VOLTAGE, VO (VPP)
PHASE, Φ (°)
60
2.0
100
–20
80
2.5
PHASE RESPONSE
0
CURRENT LIMIT
3.0
.4
–50 –25 0
25 50 75 100 125
CASE TEMPERATURE, TC (°C)
–40
32
W
COMMON MODE REJECTION, CMR (dB)
1.9
40 60 80 100 120 140
TEMPERATURE, T(°C)
100
DISTORTION (%)
2.2
SMALL SIGNAL RESPONSE
120
OPEN LOOP GAIN, AOL (dB)
20
3.5
CURRENT LIMIT, ILIM (A)
60
BIAS CURRENT
2.5
INPUT NOISE VOLTAGE, VN (nV/ Hz)
70
NORMALIZED BIAS CURRENT, IB (X)
INTERNAL POWER DISSIPATION, P(W)
P r o d u c t I n n o v a t i o nF r o m
300
PA01-73U
1K
3K 10K 30K
FREQUENCY, F (Hz)
.1M
.7
20
30
40
50
60
70
80
TOTAL SUPPLY VOLTAGE, VS (V)
3
PA01 • PA73
P r o d u c t I n n o v a t i o nF r o m
GENERAL
Please read Application Note 1 "General Operating Considerations" which covers stability, supplies, heat sinking, mounting,
current limit, SOA interpretation, and specification interpretation.
Visit www.cirrus.com for design tools that help automate tasks
such as calculations for stability, internal power dissipation,
current limit and heat sink selection. The "Application Notes"
and "Technical Seminar" sections contain a wealth of information on specific types of applications. Package outlines, heat
sinks, mounting hardware and other accessories are located
in the "Packages and Accessories" section. Evaluation Kits
are available for most Apex Precision Power product models,
consult the "Evaluation Kit" section for details. For the most
current version of all Apex Precision Power product data sheets,
visit www.cirrus.com.
SAFE OPERATING AREA (SOA)
1. For sine wave outputs, use Power Design1 to plot a load
line. Make sure the load line does not cross the 0.5ms limit
and that excursions beyond any other second breakdown
line do not exceed the time label, and have a duty cycle of
no more than 10%.
For other waveform outputs, manual load line plotting
is recommended. Applications Note 22, SOA AND LOAD
LINES, will be helpful. A Spice type analysis can be very
useful in that a hardware setup often calls for instruments
or amplifiers with wide common mode rejection ranges.
2. EMF generating or reactive load and short circuits to the
supply rail or shorts to common are safe if the current limits
are set as follows at TC = 85°C.
The output stage of most power amplifiers has three distinct
limitations:
1. The current handling capability of the transistor geometry
and the wire bonds.
2. The second breakdown effect which occurs whenever the
simultaneous collector current and collector-emitter voltage
exceeds specified limits.
3. The junction temperature of the output transistors.
5.0
4.0
3.0
2.0
1.5
Tc
=8
ste
5°C
Tc
=1
TH
ad
t=
ys
ta
25
s
SE
CO
°C
ER
te
ND
MA
L
SHORT TO
COMMON
34V
30V
25V
20V
15V
.58A
.46A
.61A
.86A
1.3A
1.1A
1.4A
1.7A
2.1A
2.9A
CURRENT LIMIT
Proper operation requires the use of two current limit resistors, connected as shown, in the external connection diagram.
The minimum value for RCL is 0.12 ohm; however, for optimum
reliability it should be set as high as possible. Refer to the
“General Operating Considerations” section of the handbook
for current limit adjust details.
BR
EA
KD
OW
1.0
SHORT TO ±VS
C, L, OR EMF LOAD
3. The output stage is protected against occaisional transient
flyback. However, for protection against sustained, high
energy flyback, external fast-recovery diodes should be
used.
t= t=
1m 0.5
s ms
5m
±VS
N
.8
.6
.4
.3
10
PA01 LIMIT
15
20
25
30 35 40
50
60
The SOA curves combine the effect of these limits. For a
given application, the direction and magnitude of the output
current should be calculated or measured and checked against
the SOA curves. This is simple for resistive loads but more
complex for reactive and EMF generating loads.
4
1
Note 1. Power Design is a self-extracting Excel spreadsheet
available free from www.cirrus.com
PA01-73U
P r o d u c t I n n o v a t i o nF r o m
PA01 • PA73
Contacting Cirrus Logic Support
For all Apex Precision Power product questions and inquiries, call toll free 800-546-2739 in North America.
For inquiries via email, please contact [email protected]
International customers can also request support by contacting their local Cirrus Logic Sales Representative.
To find the one nearest to you, go to www.cirrus.com
IMPORTANT NOTICE
Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject
to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant
information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale
supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus
for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third
parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights,
copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent
does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED TO BE
SUITABLE FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE
CUSTOMER OR CUSTOMER’S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES,
BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL
LIABILITY, INCLUDING ATTORNEYS’ FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES.
Cirrus Logic, Cirrus, and the Cirrus Logic logo designs, Apex Precision Power, Apex and the Apex Precision Power logo designs are trademarks of Cirrus Logic, Inc.
All other brand and product names in this document may be trademarks or service marks of their respective owners.
PA01-73U
5